/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */


package co.elastic.logstash.api;

/**
 * Used to log deprecation notices.
 * */
public interface DeprecationLogger {

    /**
     * Print to deprecation log the message with placeholder replaced by param values. The placeholder
     * are {} form, like in log4j's syntax.
     *
     * @param message string message with parameter's placeholders.
     * @param params var args with all the replacement parameters.
     * */
    void deprecated(String message, Object... params);
}
